app-admin/kubelet: update with better defaults

sdk_container/src/third_party/coreos-overlay/app-admin/kubelet/files/kubelet.service

@@ -3,18 +3,16 @@ Description=Kubernetes Kubelet
 Documentation=https://github.com/GoogleCloudPlatform/kubernetes
 
 [Service]
-Environment=ADDRESS=127.0.0.1
-Environment=API_SERVERS=http://127.0.0.1:8080
-Environment=ALLOW_PRIVILEGED=false
-Environment=CONFIG=/etc/kubernetes/manifests
-Environment=LOGGING=2
+Environment=KUBELET_OPTS=
 
 ExecStart=/usr/bin/kubelet \
-	--address=${ADDRESS} \
-	--api-servers=${API_SERVERS} \
-	--allow-privileged=${ALLOW_PRIVILEGED} \
-	--config=${CONFIG} \
-	--v=${LOGGING}
+ --address=127.0.0.1 \
+ --api-servers=http://127.0.0.1:8080 \
+ --allow-privileged=false \
+ --config=/etc/kubernetes/manifests \
+ --v=2 \
+ --cadvisor-port=0 \
+ ${KUBELET_OPTS}
 
 Restart=on-failure
 RestartSec=5